<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>CSS语法规范</title>
    <style>
        p {
            color: red;
            font-size: 30px;
        }
    </style>
</head>

<body>
    <p>有点意思</p>
</body>

</html>